Display rack



FIG. 1 is a top, front perspective view of a display rack showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a left side view thereof with the right side view being a mirror image thereof. 

The ornamental design for a display rack, as shown and described. 